Incandescent gas-lamp



(No Model.) 2 Sheets-Sheet 1.

H. J. BELL.

INOANDESOENT GAS LAMP.

No. 408,072. Patented July 30, 1889.

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(No Model.\ 7 2 Sheets-Sheet 2.

H. J. BELL.

INGANDESCENT GAS LAMP.

No 408,072. Patented July 30, 1889.

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UNITED STATES PATENT OFFICE.

HAROLD J. BELL, OF VVOODBURY, NEW JERSEY, ASSIGNOR TO THE VELS- BACH INOANDESCENT GAS LIGHT COMPANY, OF NEYV JERSEY.

INCANDESCENT GAS-LAM P.

SPECIFICATION forming part of Letters Patent No. 408,072, dated July 30, 1889'.

Application filed March 21, 1888. Serial No. 267,986. (No model.)

To candescent gas-lamps in which an incandescing device-such as a mantle, hood, cap, or frame of refractory materialis suspended above the gas burner or burners.

The invention consists in the combination of a group of gas-burners arranged in an annular series around a central burner, a series of incandescing mantles suspended above said gas-burners, one mantle being over each burner, and a globe or chimney surrounding the entire group or cluster of burners and incandescing mantles, whereby an unbroken wall of light will be presented on every side from which the cluster is viewed.

The invention also consists in the construc- 2 5 tion and combination of the partsrof an incandescing gas-lamp, as will be hereinafter more fully set forth.

In the annexed drawings, illustrating the invention, Figure 1 is a top view of my im- 0 proved incandescent gas-lamp-with burners and incandescing mantles grouped in a cluster. Fig. 2 is a sectional elevation of the same.

The numeral 1 indicates a portion of a gassupply pipe. 2 is a coupling screwed on said 3 5 pipe; and 3 is a burner-base having a threaded neck 4, that is screwed into the upper end of the coupling. 5 project horizontally from the upper part of the burner-base 3, and each of these radial 4o tubes is provided with an elbow-j0int 6 at its outer end. In each elbow-joint 6 is supported a vertical blllllGP-lillbG 7, and a central burner-tube 7 is supported in the top of the burner-base. Each burner-tube 7 and 7 supports a burnor 8, having a number of fine perforations or gas-exits 9 in its top, and each burner is surrounded by an air-tube 10, having lateral airinlets 11, this air-tube in turn being sur- 5o rounded by a cup-shaped mantle-protector A number of radial gas-tubes 12, having lateral air-inlets 13, through which a supply of air is admitted for both the interior and exterior surfaces of the mantle.

A separate mantle, hood, or frame 14 is suspended above and around each burner from rings 15 on the upper ends of vertical rods 16, which are adj ustably supported, by means of screws 1'7, inlugs or studs 18, projecting laterally from each burner or its surrounding air-tube. Between the coupling 2 and burn- 6o er-base 3 is supported a gallery 19 for holding a globe or chimney 20, that surrounds the e11- tire group or cluster of burners and incandescing mantles. It will be observed that this arrangement of a group of gas-burners and incandescing devices Within a single globe or chimney permits the use of a large mantle with each burner without involving any liability of contact between the mantles, and yet producing with a central burner and mantle the appearance of a solid wall of light on all sides of the lamp.

Any number of burners can be placed around a central one at such intervals that the incandescent device suspended over the central burner will be opposite to and cover all the spaces between the outer burners and their incandescent devices, so that when the lamp is lighted an unbroken line of light will be presented on all sides, thereby giving a large and brilliant illumination.

NVhen the lamp is placed where it can be reached by the hand, or it is for other reasons desired to have the gascock at the base of the lamp, the coupling 2 may be dispensed with, the gallery being in such case secured between the base of the burner and the gascock by passing the nipple or threaded neck on the base of the burner down through a hole made for the purpose in the center of the gallery, and running over the protruding nipple or threaded end of the burner the female end of the gas'cock.

In the drawings I have shown an incandescent gas-burner of the character described and claimed in Letters Patent No. 390,056, granted to me September 25, 1888; but I would have it understood that I do not herein claim that or any other particular form of burner, my present invention being confined I00 to an incandescent gas-lamp comprising a cluster of gas-burners and suspended mantles surrounded by a single globe or chimney, the burners and incandescing mantles being 5 so arranged as to present an unbroken Wall of light from every direction in which the lamp is viewed.

What I claim is An incandescent gas-lamp comprising a 10 cluster of gas-burners, one of which is central, While the others are grouped around it, a

number of incandescent mantles, each suspended separately above a single gas-burner, and a globe or chimney surrounding the entire cluster of burners and incandescent mantles, substantially as described.

In testimony whereof I afliX my signature in presence of two witnesses.

HAROLD J. BELL. Witnesses:

G. R. TAGGART, ROBERT S. CLYMER. 

